gtk2/demos/gtk-demo/appwindow.c
Benjamin Otte ad69528bde gtk-demo: Remove demo_find_file() function
It's not used anymore. With it, the demo-common.h header is not needed
anymore and is removed, too (and all the needless includes).
2013-02-01 17:44:13 +01:00

548 lines
19 KiB
C

/* Application window
*
* Demonstrates a typical application window with menubar, toolbar, statusbar.
*
* This example uses GtkUIManager and GtkActionGroup.
*/
#include <gtk/gtk.h>
#include "config.h"
static GtkWidget *window = NULL;
static GtkWidget *infobar = NULL;
static GtkWidget *messagelabel = NULL;
static void
activate_action (GtkAction *action)
{
const gchar *name = gtk_action_get_name (action);
const gchar *typename = G_OBJECT_TYPE_NAME (action);
GtkWidget *dialog;
if (g_str_equal (name, "DarkTheme"))
{
gboolean value = gtk_toggle_action_get_active (GTK_TOGGLE_ACTION (action));
GtkSettings *settings = gtk_settings_get_default ();
g_object_set (G_OBJECT (settings),
"gtk-application-prefer-dark-theme", value,
NULL);
return;
}
if (g_str_equal (name, "HideTitlebar"))
{
gboolean value = gtk_toggle_action_get_active (GTK_TOGGLE_ACTION (action));
gtk_window_set_hide_titlebar_when_maximized (GTK_WINDOW (window), value);
return;
}
dialog = gtk_message_dialog_new (GTK_WINDOW (window),
GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_MESSAGE_INFO,
GTK_BUTTONS_CLOSE,
"You activated action: \"%s\" of type \"%s\"",
name, typename);
/* Close dialog on user response */
g_signal_connect (dialog,
"response",
G_CALLBACK (gtk_widget_destroy),
NULL);
gtk_widget_show (dialog);
}
static void
activate_radio_action (GtkAction *action, GtkRadioAction *current)
{
const gchar *name = gtk_action_get_name (GTK_ACTION (current));
const gchar *typename = G_OBJECT_TYPE_NAME (GTK_ACTION (current));
gboolean active = gtk_toggle_action_get_active (GTK_TOGGLE_ACTION (current));
gint value = gtk_radio_action_get_current_value (GTK_RADIO_ACTION (current));
if (active)
{
gchar *text;
text = g_strdup_printf ("You activated radio action: \"%s\" of type \"%s\".\n"
"Current value: %d",
name, typename, value);
gtk_label_set_text (GTK_LABEL (messagelabel), text);
gtk_info_bar_set_message_type (GTK_INFO_BAR (infobar), (GtkMessageType)value);
gtk_widget_show (infobar);
g_free (text);
}
}
static void
about_cb (GtkAction *action,
GtkWidget *window)
{
GdkPixbuf *pixbuf, *transparent;
const gchar *authors[] = {
"Peter Mattis",
"Spencer Kimball",
"Josh MacDonald",
"and many more...",
NULL
};
const gchar *documentors[] = {
"Owen Taylor",
"Tony Gale",
"Matthias Clasen <mclasen@redhat.com>",
"and many more...",
NULL
};
pixbuf = gdk_pixbuf_new_from_resource ("/appwindow/gtk-logo-rgb.gif", NULL);
/* We asser the existence of the pixbuf as we load it from a custom resource. */
g_assert (pixbuf);
transparent = gdk_pixbuf_add_alpha (pixbuf, TRUE, 0xff, 0xff, 0xff);
g_object_unref (pixbuf);
gtk_show_about_dialog (GTK_WINDOW (window),
"program-name", "GTK+ Code Demos",
"version", g_strdup_printf ("%s,\nRunning against GTK+ %d.%d.%d",
PACKAGE_VERSION,
gtk_get_major_version (),
gtk_get_minor_version (),
gtk_get_micro_version ()),
"copyright", "(C) 1997-2009 The GTK+ Team",
"license-type", GTK_LICENSE_LGPL_2_1,
"website", "http://www.gtk.org",
"comments", "Program to demonstrate GTK+ functions.",
"authors", authors,
"documenters", documentors,
"logo", transparent,
"title", "About GTK+ Code Demos",
NULL);
g_object_unref (transparent);
}
typedef struct
{
GtkAction action;
} ToolMenuAction;
typedef struct
{
GtkActionClass parent_class;
} ToolMenuActionClass;
G_DEFINE_TYPE(ToolMenuAction, tool_menu_action, GTK_TYPE_ACTION)
static void
tool_menu_action_class_init (ToolMenuActionClass *class)
{
GTK_ACTION_CLASS (class)->toolbar_item_type = GTK_TYPE_MENU_TOOL_BUTTON;
}
static void
tool_menu_action_init (ToolMenuAction *action)
{
}
static GtkActionEntry entries[] = {
{ "FileMenu", NULL, "_File" }, /* name, stock id, label */
{ "OpenMenu", NULL, "_Open" }, /* name, stock id, label */
{ "PreferencesMenu", NULL, "_Preferences" }, /* name, stock id, label */
{ "ColorMenu", NULL, "_Color" }, /* name, stock id, label */
{ "ShapeMenu", NULL, "_Shape" }, /* name, stock id, label */
{ "HelpMenu", NULL, "_Help" }, /* name, stock id, label */
{ "New", GTK_STOCK_NEW, /* name, stock id */
"_New", "<control>N", /* label, accelerator */
"Create a new file", /* tooltip */
G_CALLBACK (activate_action) },
{ "File1", NULL, /* name, stock id */
"File1", NULL, /* label, accelerator */
"Open first file", /* tooltip */
G_CALLBACK (activate_action) },
{ "Save", GTK_STOCK_SAVE, /* name, stock id */
"_Save","<control>S", /* label, accelerator */
"Save current file", /* tooltip */
G_CALLBACK (activate_action) },
{ "SaveAs", GTK_STOCK_SAVE, /* name, stock id */
"Save _As...", NULL, /* label, accelerator */
"Save to a file", /* tooltip */
G_CALLBACK (activate_action) },
{ "Quit", GTK_STOCK_QUIT, /* name, stock id */
"_Quit", "<control>Q", /* label, accelerator */
"Quit", /* tooltip */
G_CALLBACK (activate_action) },
{ "About", NULL, /* name, stock id */
"_About", "<control>A", /* label, accelerator */
"About", /* tooltip */
G_CALLBACK (about_cb) },
{ "Logo", "demo-gtk-logo", /* name, stock id */
NULL, NULL, /* label, accelerator */
"GTK+", /* tooltip */
G_CALLBACK (activate_action) },
};
static guint n_entries = G_N_ELEMENTS (entries);
static GtkToggleActionEntry toggle_entries[] = {
{ "Bold", GTK_STOCK_BOLD, /* name, stock id */
"_Bold", "<control>B", /* label, accelerator */
"Bold", /* tooltip */
G_CALLBACK (activate_action),
TRUE }, /* is_active */
{ "DarkTheme", NULL, /* name, stock id */
"_Prefer Dark Theme", NULL, /* label, accelerator */
"Prefer Dark Theme", /* tooltip */
G_CALLBACK (activate_action),
FALSE }, /* is_active */
{ "HideTitlebar", NULL,
"_Hide Titlebar when maximized", NULL,
"Hide Titlebar when maximized",
G_CALLBACK (activate_action),
FALSE }
};
static guint n_toggle_entries = G_N_ELEMENTS (toggle_entries);
enum {
COLOR_RED,
COLOR_GREEN,
COLOR_BLUE
};
static GtkRadioActionEntry color_entries[] = {
{ "Red", NULL, /* name, stock id */
"_Red", "<control>R", /* label, accelerator */
"Blood", COLOR_RED }, /* tooltip, value */
{ "Green", NULL, /* name, stock id */
"_Green", "<control>G", /* label, accelerator */
"Grass", COLOR_GREEN }, /* tooltip, value */
{ "Blue", NULL, /* name, stock id */
"_Blue", "<control>B", /* label, accelerator */
"Sky", COLOR_BLUE }, /* tooltip, value */
};
static guint n_color_entries = G_N_ELEMENTS (color_entries);
enum {
SHAPE_SQUARE,
SHAPE_RECTANGLE,
SHAPE_OVAL
};
static GtkRadioActionEntry shape_entries[] = {
{ "Square", NULL, /* name, stock id */
"_Square", "<control>S", /* label, accelerator */
"Square", SHAPE_SQUARE }, /* tooltip, value */
{ "Rectangle", NULL, /* name, stock id */
"_Rectangle", "<control>R", /* label, accelerator */
"Rectangle", SHAPE_RECTANGLE }, /* tooltip, value */
{ "Oval", NULL, /* name, stock id */
"_Oval", "<control>O", /* label, accelerator */
"Egg", SHAPE_OVAL }, /* tooltip, value */
};
static guint n_shape_entries = G_N_ELEMENTS (shape_entries);
static const gchar *ui_info =
"<ui>"
" <menubar name='MenuBar'>"
" <menu action='FileMenu'>"
" <menuitem action='New'/>"
" <menuitem action='Open'/>"
" <menuitem action='Save'/>"
" <menuitem action='SaveAs'/>"
" <separator/>"
" <menuitem action='Quit'/>"
" </menu>"
" <menu action='PreferencesMenu'>"
" <menuitem action='DarkTheme'/>"
" <menuitem action='HideTitlebar'/>"
" <menu action='ColorMenu'>"
" <menuitem action='Red'/>"
" <menuitem action='Green'/>"
" <menuitem action='Blue'/>"
" </menu>"
" <menu action='ShapeMenu'>"
" <menuitem action='Square'/>"
" <menuitem action='Rectangle'/>"
" <menuitem action='Oval'/>"
" </menu>"
" <menuitem action='Bold'/>"
" </menu>"
" <menu action='HelpMenu'>"
" <menuitem action='About'/>"
" </menu>"
" </menubar>"
" <toolbar name='ToolBar'>"
" <toolitem action='Open'>"
" <menu action='OpenMenu'>"
" <menuitem action='File1'/>"
" </menu>"
" </toolitem>"
" <toolitem action='Quit'/>"
" <separator action='Sep1'/>"
" <toolitem action='Logo'/>"
" </toolbar>"
"</ui>";
/* This function registers our custom toolbar icons, so they can be themed.
*
* It's totally optional to do this, you could just manually insert icons
* and have them not be themeable, especially if you never expect people
* to theme your app.
*/
static void
register_stock_icons (void)
{
static gboolean registered = FALSE;
if (!registered)
{
GdkPixbuf *pixbuf;
GtkIconFactory *factory;
GtkIconSet *icon_set;
GdkPixbuf *transparent;
static GtkStockItem items[] = {
{ "demo-gtk-logo",
"_GTK!",
0, 0, NULL }
};
registered = TRUE;
/* Register our stock items */
gtk_stock_add (items, G_N_ELEMENTS (items));
/* Add our custom icon factory to the list of defaults */
factory = gtk_icon_factory_new ();
gtk_icon_factory_add_default (factory);
pixbuf = gdk_pixbuf_new_from_resource ("/appwindow/gtk-logo-rgb.gif", NULL);
/* We assert the existence of the pixbuf as we load it from a custom resource. */
g_assert (pixbuf);
/* The gtk-logo-rgb icon has a white background, make it transparent */
transparent = gdk_pixbuf_add_alpha (pixbuf, TRUE, 0xff, 0xff, 0xff);
icon_set = gtk_icon_set_new_from_pixbuf (transparent);
gtk_icon_factory_add (factory, "demo-gtk-logo", icon_set);
gtk_icon_set_unref (icon_set);
g_object_unref (pixbuf);
g_object_unref (transparent);
/* Drop our reference to the factory, GTK will hold a reference. */
g_object_unref (factory);
}
}
static void
update_statusbar (GtkTextBuffer *buffer,
GtkStatusbar *statusbar)
{
gchar *msg;
gint row, col;
gint count;
GtkTextIter iter;
gtk_statusbar_pop (statusbar, 0); /* clear any previous message,
* underflow is allowed
*/
count = gtk_text_buffer_get_char_count (buffer);
gtk_text_buffer_get_iter_at_mark (buffer,
&iter,
gtk_text_buffer_get_insert (buffer));
row = gtk_text_iter_get_line (&iter);
col = gtk_text_iter_get_line_offset (&iter);
msg = g_strdup_printf ("Cursor at row %d column %d - %d chars in document",
row, col, count);
gtk_statusbar_push (statusbar, 0, msg);
g_free (msg);
}
static void
mark_set_callback (GtkTextBuffer *buffer,
const GtkTextIter *new_location,
GtkTextMark *mark,
gpointer data)
{
update_statusbar (buffer, GTK_STATUSBAR (data));
}
GtkWidget *
do_appwindow (GtkWidget *do_widget)
{
if (!window)
{
GtkWidget *table;
GtkWidget *statusbar;
GtkWidget *contents;
GtkWidget *sw;
GtkWidget *bar;
GtkTextBuffer *buffer;
GtkActionGroup *action_group;
GtkAction *open_action;
GtkUIManager *merge;
GError *error = NULL;
register_stock_icons ();
/* Create the toplevel window
*/
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_screen (GTK_WINDOW (window),
gtk_widget_get_screen (do_widget));
gtk_window_set_title (GTK_WINDOW (window), "Application Window");
gtk_window_set_icon_name (GTK_WINDOW (window), "document-open");
/* NULL window variable when window is closed */
g_signal_connect (window, "destroy",
G_CALLBACK (gtk_widget_destroyed),
&window);
table = gtk_grid_new ();
gtk_container_add (GTK_CONTAINER (window), table);
/* Create the menubar and toolbar
*/
action_group = gtk_action_group_new ("AppWindowActions");
open_action = g_object_new (tool_menu_action_get_type (),
"name", "Open",
"label", "_Open",
"tooltip", "Open a file",
"stock-id", GTK_STOCK_OPEN,
NULL);
gtk_action_group_add_action (action_group, open_action);
g_object_unref (open_action);
gtk_action_group_add_actions (action_group,
entries, n_entries,
window);
gtk_action_group_add_toggle_actions (action_group,
toggle_entries, n_toggle_entries,
NULL);
gtk_action_group_add_radio_actions (action_group,
color_entries, n_color_entries,
COLOR_RED,
G_CALLBACK (activate_radio_action),
NULL);
gtk_action_group_add_radio_actions (action_group,
shape_entries, n_shape_entries,
SHAPE_SQUARE,
G_CALLBACK (activate_radio_action),
NULL);
merge = gtk_ui_manager_new ();
g_object_set_data_full (G_OBJECT (window), "ui-manager", merge,
g_object_unref);
gtk_ui_manager_insert_action_group (merge, action_group, 0);
gtk_window_add_accel_group (GTK_WINDOW (window),
gtk_ui_manager_get_accel_group (merge));
if (!gtk_ui_manager_add_ui_from_string (merge, ui_info, -1, &error))
{
g_message ("building menus failed: %s", error->message);
g_error_free (error);
}
bar = gtk_ui_manager_get_widget (merge, "/MenuBar");
gtk_widget_show (bar);
gtk_widget_set_halign (bar, GTK_ALIGN_FILL);
gtk_grid_attach (GTK_GRID (table), bar, 0, 0, 1, 1);
bar = gtk_ui_manager_get_widget (merge, "/ToolBar");
gtk_widget_show (bar);
gtk_widget_set_halign (bar, GTK_ALIGN_FILL);
gtk_grid_attach (GTK_GRID (table), bar, 0, 1, 1, 1);
/* Create document
*/
infobar = gtk_info_bar_new ();
gtk_widget_set_no_show_all (infobar, TRUE);
messagelabel = gtk_label_new ("");
gtk_widget_show (messagelabel);
gtk_box_pack_start (GTK_BOX (gtk_info_bar_get_content_area (GTK_INFO_BAR (infobar))),
messagelabel,
TRUE, TRUE, 0);
gtk_info_bar_add_button (GTK_INFO_BAR (infobar),
GTK_STOCK_OK, GTK_RESPONSE_OK);
g_signal_connect (infobar, "response",
G_CALLBACK (gtk_widget_hide), NULL);
gtk_widget_set_halign (infobar, GTK_ALIGN_FILL);
gtk_grid_attach (GTK_GRID (table), infobar, 0, 2, 1, 1);
sw = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
GTK_POLICY_AUTOMATIC,
GTK_POLICY_AUTOMATIC);
gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (sw),
GTK_SHADOW_IN);
gtk_widget_set_halign (sw, GTK_ALIGN_FILL);
gtk_widget_set_valign (sw, GTK_ALIGN_FILL);
gtk_widget_set_hexpand (sw, TRUE);
gtk_widget_set_vexpand (sw, TRUE);
gtk_grid_attach (GTK_GRID (table), sw, 0, 3, 1, 1);
gtk_window_set_default_size (GTK_WINDOW (window),
200, 200);
contents = gtk_text_view_new ();
gtk_widget_grab_focus (contents);
gtk_container_add (GTK_CONTAINER (sw),
contents);
/* Create statusbar */
statusbar = gtk_statusbar_new ();
gtk_widget_set_halign (sw, GTK_ALIGN_FILL);
gtk_grid_attach (GTK_GRID (table), statusbar, 0, 4, 1, 1);
/* Show text widget info in the statusbar */
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (contents));
g_signal_connect_object (buffer,
"changed",
G_CALLBACK (update_statusbar),
statusbar,
0);
g_signal_connect_object (buffer,
"mark_set", /* cursor moved */
G_CALLBACK (mark_set_callback),
statusbar,
0);
update_statusbar (buffer, GTK_STATUSBAR (statusbar));
}
if (!gtk_widget_get_visible (window))
{
gtk_widget_show_all (window);
}
else
{
gtk_widget_destroy (window);
window = NULL;
infobar = NULL;
messagelabel = NULL;
}
return window;
}